Справочник Пользователя для Nortel Networks Option 11C Mini
Page 70 of 332
Chapter 4 — Creating an equipment layout plan and a card slot assignment plan
553-3021-209
Standard 3.00
April 2000
— vertically on a wall
— horizontally on a wall
•
in a rack/cabinet
•
on a table
Each Option 11C Mini chassis measures 8.4 in. (213 mm) high by 17.2 in.
(437 mm) wide by 12.8 in. (325 mm) deep.
(437 mm) wide by 12.8 in. (325 mm) deep.
Equipment layout plan for installing the chassis on a wall
horizontally and vertically
horizontally and vertically
Figure 9 on page 71 shows a typical wall layout, using BIX cross-connect
equipment, for installing the chassis on a wall in a horizontal position.
Figure 10 on page 72 shows a typical wall layout, using BIX cross-connect
equipment, for installing the chassis on a wall in a vertical position. Use of
other types of terminal blocks and equipment can change the layout. As a
result, if required, adjust the height at which you place the chassis in relation
to other equipment. If required, also adjust the distances between the power
outlets and the backboard.
equipment, for installing the chassis on a wall in a horizontal position.
Figure 10 on page 72 shows a typical wall layout, using BIX cross-connect
equipment, for installing the chassis on a wall in a vertical position. Use of
other types of terminal blocks and equipment can change the layout. As a
result, if required, adjust the height at which you place the chassis in relation
to other equipment. If required, also adjust the distances between the power
outlets and the backboard.
Use the following guidelines to position the system equipment on a wall.
•
It is recommended that you fasten a 3/4 in. (20 mm) plywood (or other
material like plywood) backboard to the surface of the wall. Fasten the
Option 11C Mini equipment to this backboard.
material like plywood) backboard to the surface of the wall. Fasten the
Option 11C Mini equipment to this backboard.
•
When planning for a system with DTI/PRI capability, allow space on the
backboard for the channel service unit (CSU).
backboard for the channel service unit (CSU).
•
Leave at least 6 in. (155 mm) above the mounting bracket and any
obstruction (such as a pipe or conduit) so that there is room to lift the
chassis on and off the bracket.
obstruction (such as a pipe or conduit) so that there is room to lift the
chassis on and off the bracket.
•
Leave at least 12 in. (305 mm) between the top of a chassis and the
ceiling to make sure that there is enough ventilation for the system.
ceiling to make sure that there is enough ventilation for the system.
•
Leave 10 in. (255 mm) between the bottom of the lower chassis and the
floor to prevent water damage.
floor to prevent water damage.
•
If you use the NTAK92 Off-premises protection module, allow for
correct installation (according to local practices).
correct installation (according to local practices).
•
Make sure power outlets are within reach of each system chassis. See
Table 5 on page 37 for cable and wire specifications.
Table 5 on page 37 for cable and wire specifications.